The tug Islay was built by Alexander McDougall and named for his daughter, who was named for McDougall's birthplace in Scotland. Islay was part of the first triple launching on the Great Lakes, including the Whalebacks Pillsbury and Washburn. Powered by a 1-cylinder, 125 HP steam engine and owned by the yard until 1911, Islay went on to a career as a supply boat and lumber tug. Converted to diesel and renamed Bayfield in 1949, she worked throughout the Apostle Islands and Chequamegon Bay on Lake Superior. In the mid-1950's on the St. Claire River, Bayfield served in the marine construction business. After moving to Lake Michigan in 1972, she was laid up in 1976. Reactivated in 1989 with second-hand Kahlenberg Diesel, Islay made a brief appearance at the Port of Milwaukee, Wisconsin. The vessel was scrapped in 2013, and many articles from the ship now reside at the Bayfield Maritime Museum.